I have a tab where users will enter information into a spreadsheet. As example, I've attached a sample Excel File. The combination of Column A and Column B should represent a unique value within the spreadsheet.
In a separate tab, I want to have a formula which can provide a count of the Unique Values or Duplicate Values based on Column A and B in the attached.
All I'm trying to do is provide the user a way to tell at a glance, if there are duplicate items in their data entry tab.
Either a formula which can count unique values or duplicate values for the concatenation of Column A & B will allow me to do this.....but I haven't been able to figure out a formula for either.
Thanks for any help!